Geforce GTX 680 vs Radeon RX 6650 XT

Intro

Compare those specs to the Radeon RX 6650 XT, which has GPU clock speed of 2055 MHz, and 8192 MB of GDDR6 RAM running at 2190 MHz through a 128-bit bus. It also is comprised of 2048 Stream Processors, 128 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
Geforce GTX 680		195 Watts
	Difference: 19 Watts (11%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6650 XT should in theory be quite a bit better than the Geforce GTX 680 overall. (explain)

Radeon RX 6650 XT		287072 MB/sec
Geforce GTX 680		192256 MB/sec
	Difference: 94816 (49%)

Texel Rate

The Radeon RX 6650 XT should be quite a bit (about 104%) better at AF than the Geforce GTX 680. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Geforce GTX 680		128768 Mtexels/sec
	Difference: 134272 (104%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 6650 XT is superior to the Geforce GTX 680, and very much so. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Geforce GTX 680		32192 Mpixels/sec
	Difference: 99328 (309%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.